Petrified Wood

Although petrified wood is not technically a crystal, it does hold amazing energy.  It is very earthy which makes it a good grounding stone that works with both the Root and Sacral Chakras. It is said to work with all types of healing but especially those in relation to age such as Arthritis, Alzheimer's and Osteoporosis.
 
Petrified wood will range in color depending on what type of wood it is, how old it is and where it is found. It is wood that has been fossilized and covered with a silicon sediment that actually preserves the wood.
 
Chakras: Sacral, Root
Astrological Sign: Virgo, Leo
Number Vibration: 5
MOHS: 7
Chemical Comp: SiO2 Silicon Dioxide